Rail-grinder



E. P. TABOR.

Y RAIL-Gamm. Y K APPLICATION FILED DEC. 7,4918. 1;,3405991.

2 SHEETS-SHEET 2- .Patgnted' May 25, 1920.

3 wuentoz fg Einf/1 UNITED stares Per Nr oricf EDWARD P. TABOR, OFVLTORCESTER, MASSACHUSETTS, ISLSSIGNR OF ONE-FOURTH-TQ JAMES J, EGAN, OFWRCESTER, MASSACHUSETTS. i

RAIL-GRINDER.

Application led December 7,

f State of Massachusetts, have invented a new and useful Rail-Grinder,of which the following is a specification.

The device forming the subject matter of this application is adapted to.be employed y for grinding the rails of a railroad track, for grindingfrogs and for like purposes.

@ne object of the invention is to provide a device of the kind mentionedwhich maybe secured to the track, thereby avoiding the disadvantagesincident to the use of a wheelmounted carriage which moves along thetrack, it having been found that such a carriage, following theirregularities of the track, causes the grinding wheel to gouge and tooperate otherwise, in an improper way. n

Another object of the invention is to provide novel means whereby thegrinding wheel Vmay be moved and adjusted with respect to the elementwhich is being ground.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the presentinvention appertains.

Vith the above and other objects in view, which will appear as thedescription proceeds, lthe invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed .and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in top plan, a device oon-`structed in accordance with thev invention; Fig. 2 is a side elevation;Fig. 3 is an end elevation wherein parts are broken away; Fig. 4 is across section; and Fig. 5 is a fragmental vertical section showing oneof the standards, and parts carried thereby.

In carrying out the invention there is provided a mainframe includingside bars 1 provided intermediate their ends with depending feet 2adapted to rest on a rail 3, the feet 2 having lugs 4 which engage theinner edge of the rail. rlhe side bars 1 are supplied at their ends withsockets 5 in which rods 6 are mounted, the rods being Specification ofLetters Patent.

.located inside the rail.

Patented May 25, 1920.

131s. serial No. 265,711.

.held in place by set screws 7 threaded into the sockets and engagingthe'rods. Intermediate their ends, the side bars 1 of the main frame areconnected by a V-shaped brace 8 having a flat end 9 provided with anoutstanding lip 10 adapted to rest on a rail 11, and provided with adepending ear 12, A set screw le is threaded in the ear 12 and engagesthe rail 11. f

Standards 15 are adjustable on the side bars 1, longitudinally of theside bars, the standards having elongated feet 16 resting slidably onthe side bars, the feet 16 and the side bars being supplied withelongated slots 17, receiving clamp bolts18, the construction being suchthat the'standards may be adjusted longitudinally of the side bars 1,and be heldin adjusted positions on theside bars.

guides 19, wherein slides 20 reciprocate.

Screws 29 are held for rotation but against longitudinal movement in thestandards 15,

the screws 29 being operated by means vof.

cranks 30 or in any other suitable way. The screws 29 are threaded intothe slides 20 Aand obviously, when the screws 29 are rotated, the slides20 will be raised and lowered. The slides 2O include bearings 21'inwhich are journaled for rocking movement, hollow ,trunnions 22constituting a part of an auX- iliary frame, the auxiliary frameincluding I end bars 23 carrying the hollow trunnion'22,

and side bars 24 connecting the end barsQB.

Set screws 25 arethreaded into bearings 21# and engage thehollowfftrunnions22 of the auxiliary frame. Consequently, the au iliaryframe may be tilted at any desired angle with respect to the horizontal,and may be held in any position to which it may have been tilted;Vv Alead screw 26V is `iournaled for rotation in the hollow trunnions 22 andis held against longitudinal movement by means of collars 27', coactingwith the outer ends of the bearings 21, the `lead screw being operatedby means of a crank 28.

rlhe numeral 31 marks a carriage having lugs 32 mounted to slide on theside bars 241 of the auxiliary frame. The carriage 31 has a dependinglug 33, into which the lead screw 26 is threaded. Hangers 34 depend fromthe carriage 31, a shaft 35 being journaled in the hangers. is fixed tothe shaft 35, for rotation therewith. The shaft S5 is supplied with apul- A grinding wheel 36l A ley ,about which is trained a belt 38, enfgaging a pulley 39 on the shaft l0 ol a motor Allk mounted onthelcarriage 31. YThe motor 41, preferably is driven electrically. n

In practical Operation, the main frame is mounted on the rails 3k and 11as shown Yin Fig. '-3, the lng 4 engaging the" rail 3, the lip K .10resting on the rail 11, and the set screiv 14 being advanced, so. tobea-r against the inner edge of therail 11." In `tlnis Way, the maintra-ine islieldsecu-rely on the rails. By loosening the clamp bolts 18,the standards 1f`5 may be shifted longitudinally of the side bars 1 ofthe main frame so as to position the grinding Wheel 36 above the rail 3which is to be ground, ftliefclamp bolts'18 being then tightened up,tohold the standards 15 in the' positions to Whicli they haveV been ad-'justedirv The 4screws 29 may be rotated, and,

because the said screws are threaded into theV slides 2020i theauxiliary frame, the auxil iary frame, rtogether with the grinding Wheel36V may V4be raisedand lowered thereby adf Vjnsting ithe lpositionof thegrinding Wheel with respect to the yrail 3 which is tobe ground.Further, by loosening. the set screws 25, the hollow' trunnions 22 of,the auxiliary trannie may be permittedto rocl in the Y bearings '21 ofitlie slides 20, in` this Way., tflie auxiliary traine may be positionedfat different angles with Vrespect to the liorizontal, the positie-notthe Working face of tliegrinding vvneel-36 with respect to the :railbeing altered accordingly. The auxiliary framemay belie'ldin yanyposition to which it may have been tilted by'tiglitening up the'setxscreWs-:25- After the machine llas 'been' jiis ,ustedV :and Y placedaoresaidgtlie lead .scre'iiv 26 is notatednby means of thec'ranfk '23,'.40

lthe .carriage being moved longitudinally of: the side bars V24,01c the.auxiliary frame, and the grinding .Wheel-36 sbeing made to traversetherail which is to begrotind Rowherein a carriage moves bodily along tlie-rails of the track, the Wheels of the carriage necessarily iolloiv thevertical irregularities of the rails and the grinding AWheelparticipates in the vertical movement, a gouging of the rail resulting.Since the structure forming the Subj ect matter of this applicationincludes a lixed frame, it is clear that rthe dis-Y advantages arisingont of the use of a Wheelniounted carriage will `be avoided.

Having thus described tlie invention, what is claimed is:-Y f i 1. ln adevice for grindinf'f railroad track rails in Situ, a frame; `alead-screw carried the auxiliaryq frame; a carriage mounted-toreciprocate on the auxiliary'rame `aigrind-A ing elementfmonnt'ed on thecarriage; Vand means on the lcarriage kfor operating thegrindingelenient. i

In a Adevice for grinding railroad track Y rails n situ, aimain `frame;'an auxiliary tationjis of conrsefimparted to the grinding VlWheel 36roniftlie motorfllby means of the Shaft @tithe pnlley 39, the-beltBS,the ypulley 37Vandtbe'shatt 35..l l

' Inaddrtion tothe advantages arising out the various vadjustmentswliicli areipossiblejin the inacliine, itis tobe observed that thomannfreine may.' beclamped securely to-the nails and; 11, tlieA @carriageYbeing re-V ciprocated-until `the` desired area bas been upground,onsurfaned. In devices of'this kind,-

'asmy own, l have hereto aflixed my signature in the presence oi" tivoWitnesses. .f i

EDlArl-@D l?. TABQlK Y `rocating the carriage.l

Y lVitnesses:

lrianne mounted yon :tl-ie main traine toV tilt and Ofindingmeansniounted onspecified meansy for Y raising `said ri-neai'is i andtransverselyy of the rails; means for adjust- -V ing the auxiliaryvtrame toward ,and awayk Atroni the railf to be vground and transversely-tfliereol a carriage mounted -to reciprocate on the auxiliary frame,longitudinally ot thel rail to be ground; Ya grindingelement assem-Ybledivitli the carriage; means.V for opera-ting; c

the grinding element;

Inftestiinony :that l Vclaim' the foregoing CHESTER F. BAvis, A IoRAonB.. Vinny.

and means tor r-ecipY

